Question
A group of 40 girls and 30 boys took part in a Chinese quiz. The average score of the girls was 57 points. While the average score of the boys was 78 points. What was the average score of all the children who participated in the quiz?
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A group of 40 girls and 30 boys took part in a Chinese quiz. The average score of the girls was 57 points. While the average score of the boys was 78 points. What was the average score of all the children who participated in the quiz?